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Salt-free dyeing process for natural silk fabric

A technology for real silk fabric and salt-free dyeing, applied in the field of salt-free dyeing technology, can solve the problems of increased sewage treatment cost, low directness of reactive dyes, low color fixation rate, etc., and achieves enhanced dyeing effect and efficiency, good dyeing effect, The effect of high dye fastness

Inactive Publication Date: 2015-07-01
太仓市宝明化纤有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the low directness of reactive dyes and the easy hydrolysis of active groups, the color fixation rate is not high. A lot of resources are wasted, and the cost of sewage treatment is increased

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A kind of salt-free dyeing process of real silk fabric, comprises the following steps:

[0042] (1) Pretreatment: Pretreatment of silk fabrics, specifically: 1 g / L of urea, 4.5 g / L of non-phosphorus neutral degreasing spirit TF-104M, 1 g / L of sodium dodecylbenzenesulfonate, 60% hydrogen peroxide 2 g / L, oxidative desizing agent OS 0.8 g / L, treated in a 30°C water bath for 2-3 minutes, the bath ratio is 20:1, the water bath is then heated up, the heating rate is 2.5°C / min, when the temperature After rising to 90°C, keep at this temperature for 30-40min, and then the temperature of the water bath is lowered at a rate of 1.5°C / min. When the temperature drops to 60°C, discharge the treated waste water, and then re-inject clean water to rinse at room temperature until the lotion is neutral, and finally dry;

[0043] (2) Pre-setting: Pre-setting the silk fabric through a pre-setting machine. During the pre-setting process, the setting temperature is 160°C, the speed is 20m / mi...

Embodiment 2

[0057] A kind of salt-free dyeing process of real silk fabric, comprises the following steps:

[0058] (1) Pretreatment: Pretreatment of silk fabrics, specifically: urea 1.2g / L, phosphorus-free neutral degreasing spirit TF-104M 5 g / L, sodium dodecylbenzenesulfonate 1.2 g / L , 60% hydrogen peroxide 2.5 g / L, oxidative desizing agent OS 1g / L, treated in a 30°C water bath for 2-3 minutes, the bath ratio is 20:1, the water bath is then heated up, the heating rate is 2.5°C / min, when the temperature After rising to 90°C, keep it at this temperature for 35 minutes, and then lower the temperature of the water bath at a rate of 1.5°C / min. When the temperature drops to 60°C, discharge the treated wastewater, and then re-inject clean water to rinse at room temperature until washed. The liquid is neutral, and finally dried;

[0059] (2) Pre-setting: Pre-setting the silk fabric through a pre-setting machine. During the pre-setting process, the setting temperature is 165°C, the speed is 25m / ...

Embodiment 3

[0073] A kind of salt-free dyeing process of real silk fabric, comprises the following steps:

[0074] (1) Pretreatment: Pretreatment of silk fabrics, specifically: use urea 1.5g / L, phosphorus-free neutral degreasing spirit TF-104M 5.5 g / L, sodium dodecylbenzenesulfonate 1.5 g / L , 60% hydrogen peroxide 3 g / L, oxidative desizing agent OS 1.2 g / L, treated in a 30°C water bath for 2-3 min, the bath ratio was 20:1, and then heated up in the water bath at a rate of 2.5°C / min. After the temperature rises to 90°C, it is kept at this temperature for 40 minutes, and then the temperature of the water bath is lowered at a rate of 1.5°C / min. When the temperature drops to 60°C, the treated wastewater is discharged, and then re-injected with clean water and rinsed at room temperature until The lotion is neutral and finally dried;

[0075] (2) Pre-setting: Pre-setting the silk fabric through a pre-setting machine. During the pre-setting process, the setting temperature is 170°C, the speed i...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention provides a salt-free dyeing process for natural silk fabric. The salt-free dyeing process comprises the following steps: pre-treatment, pre-setting, modified treatment, dyeing, soaping, fixation, after-treatment, drying, setting, calendaring and rolling. The fabric is subjected to modified treatment with a cationic modifying agent, so that the dyeing rate of the fabric is increased; and the difficulty in the subsequent dyeing step is reduced. In the dyeing procedure, inorganic salts such as anhydrous sodium sulphate or table salt are not used, so that the pollution is reduced. Due to the addition of the soaping and fixation processes, the dyeing fastness is good. Green environment-friendly aldehyde-free TCD-R is adopted in the fixation process; and the fiber is gradually dried after fixation, so that the fastness of the fiber is greatly improved. Due to the addition of the after-treatment process, the color fastness and the softness of the fabric are improved; the roughness sense of the fabric is relieved; and the fabric is fluffy and elastic.

Description

technical field [0001] The invention relates to a salt-free dyeing process of real silk fabrics. Background technique [0002] Fibers are divided into chemical fibers and natural fibers. Chemical fibers are fibers with textile properties that are made from natural polymers or artificially synthesized polymers through the processes of preparing spinning dope, spinning and post-treatment. It has the advantages of light resistance, wear resistance, easy washing and drying, no mildew and no moths. Widely used in the manufacture of clothing fabrics, filter cloths, conveyor belts, hoses, ropes, fishing nets, electrical insulation wires, medical sutures, tire cords and parachutes, etc. Natural fiber refers to the fiber that exists and grows in nature and has textile value. Silk is a kind of natural fiber. To be precise, it is a kind of natural protein fiber. And other properties, so it is also widely used in the textile field of clothing manufacturing. [0003] Dyeing is an impo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/10D06P1/38D06P1/48D06P1/62D06P5/08D06P5/10D06P5/04D06L1/14D06M11/76D06M16/00D06C7/02D06C15/00D06M101/10
Inventor 顾晓平
Owner 太仓市宝明化纤有限公司
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